- qt-creator-4.8
qt-5.12.1-msvc2015_amd64 - qt-creator-4.9
qt-5.12.4-msvc2017_amd64
I choose Qt 5.7.0 for my daily used, but keep Qt Creator update.
So there are a problem: the Qt library shipped with Qt Creator is newest !
An the plugin for Qt Creator must match that Qt library.
If you didn't need Qt Designer feature, just build libqwt.a,
or you have to compile designer plugin yourself:(
I just compile it, for myself.
Windows version Qt Creator built with MSVC, like this:
So I have to install Qt-5.11.1-MSVC2015-64bit + MSVC Build Tools 2015.3...
The follow brief is offical README
Qwt - Qt Widgets for Technical Applications
The Qwt library contains GUI Components and utility classes which are primarily useful for programs with a technical background. Beside a framework for 2D plots it provides scales, sliders, dials, compasses, thermometers, wheels and knobs to control or display values, arrays, or ranges of type double.
Qwt is distributed under the terms of the Qwt License, Version 1.0.
Qwt 6.1 might be usable in all environments where you find Qt. It is compatible with Qt4 ( >= 4.4 ) and all Qt5 versions.
Read the summary of the most important changes.
Authors: Uwe Rathmann, Josef Wilgen ( <= Qwt 0.2 )